Tuesday, December 14, 2010

The Right Way To Successfully Make Use Of Green Screen In TV Production

By Phillip Guye


The introduction of satellite television has witnessed the virtual surge of television channels, and broadcasters, production houses as well as content producers. This is because cable television as well as direct to home platforms have certainly pushed the frontiers of TV broadcasting further than all imaginable boundaries and that too on a worldwide scale. One of the frequent techniques that are used in television program production is that of working with a green screen in the background of the studio room where a particular program is being filmed. It is a part of the method of chroma key that deals particularly with the removal of selected images in the background of the shot as well as superimposing this with different image, which is more desirable for the shot. For instance, a person could make use of a display screen which is green in coloration right behind a broadcaster who is reading out the weather condition announcement. When viewers watch the show, the green or maybe blue screen as the case might be, will be obliterated, having a weather map or even scenes of particular places or satellite photos being shown instead.

A green screen is particularly useful for chroma key applications, on account of the fact that the normal skin tone has very little aspects of green in it. This helps in excellent quality of graphic superimposition as well as replacement of backdrop, devoid of interfering much with the standard view of the broadcaster who may be standing in the foreground. In case there was any kind of green tint or tone in human skin, parts of the body will have become invisible on using the other colored screen, producing the effect quite unusual and very improper and incongruous.

One of the many advantages of using a green screen is that it is fairly easy to implement as well as quite affordable too. If someone were to use a huge plasma or HDTV screen behind the broadcaster, the effect can be amazing, nevertheless the expense will be quite prohibitive. In these days of economic depression, where cost management is paramount, the dice is loaded in favor of using less expensive alternatives.

It's possible to very easily make a green screen that can be used in TV program production. For this, something as simple as a table cloth can be used. This cloth must be evenly painted, so that there are no smudges or uneven parts that could stand out once the show runs on air. Anybody can also use a plain wall that is uniformly painted in green to form the colored backdrop. One of many tips to keep in mind when working with such a screen is that if the background image is one of trees or forests, green is often a more suitable shade to utilize than blue for the backdrop, while if the image is of the ocean or sky, green would not be so apt.

Using a green screen is therefore a powerful way of making use of chroma key strategy in TV program production, which is well-liked because of its simpleness and inexpensiveness.




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